Fix clang warning / miscompile.

Patch by Nico Weber <thakis@chromium.org>

Review URL: http://breakpad.appspot.com/256001


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@760 4c0a9323-5329-0410-9bdc-e9ce6186880e
1 file changed